Family members rally for answers about the death of Kyam Livingston, 37, who died in police custody in July. (Credit: Eileen Lehpamer/1010 WINS)

NEW YORK (CBSNewYork) — Family members rallied in Brooklyn Saturday on behalf of a woman who died in police custody, claiming that police ignored her please for medical attention until it was too late.

As 1010 WINS’ Eileen Lehpamer reported, flowers were placed against the wall at Church Avenue and East 18th Street in Brooklyn, under a poster board with a picture of Kyam Livingston. Her sister and mother led the rally, demanding answers.

Family Calls For Answers About Woman's Death In Police Custody

“I want justice for my daughter,” her mother said. “My daughter was killed in Central Booking, and they tried to cover it up.”

Livingston, 37, was arrested on July 21 for allegedly violating a restraining order that forbade her from drinking alcohol while in her grandmother’s house. She died after being held in Brooklyn Central Booking.

Her sister said she had asthma, and begged for hours for someone to call an ambulance.

“So that was, like, a shock. I couldn’t believe it,” the sister said.

Livingston had been held for 20 hours when an ambulance was dispatched, and Livingston was pronounced dead at Brooklyn Hospital, family members told the Brooklyn Eagle. The NYPD said Livingston’s death resulted from a seizure, but family members said this is not true, the newspaper reported.

The Livingston family has filed a lawsuit. The NYPD said it is looking into the matter.